Nyalox 3 x 5/8 in. Blue 240-Grit Nylon Fine Cup Brush features abrasive grain embedded in every bristle, allowing it to work like a wire brush on wood, metal, tile, and other surfaces. It functions similarly to a power sander, effectively removing old finishes while maintaining its shape without shedding bristles. This brush is color-coded with blue representing the 240 grit, helping you select the safest grit for your surfaces. Designed for durability, it does not rust and is safer to use than traditional wire brushes. I for tasks such as dried grout removal, it attaches easily with a 5/8-11 female thread that spins directly onto your angle grinder. The maximum operating speed is 12,500 rpm, making it a reliable tool for various surface preparation jobs. Model Number: